*FantasticTubes 🎷  🎶

One tube, U.S.A. made by Sylvania for Zenith,
type 6AK8 / EABC80 vacuum tube
as pictured.
<<<<<<< As pictured = The tube you see is the tube you get! >>>>>>>

Condition:
New Old Stock / New In Box
Hickok 539B tested,Guarantee Good!

*Hickok 539B is a mutual conductance(Gm) type tube tester. It does check for mutual conductance which is a more accurate measure of tube's age.

Satisfaction Guaranteed!
*FantasticTubes !!!
🎷 🎶